Filebeat modules simplify the collection, parsing, and visualization of common
log formats.

A typical module (say, for the Nginx logs) is composed of one or
more filesets (in the case of Nginx, access and error). A fileset contains
the following:

Filebeat input configurations, which contain the default paths where to
look for the log files. These default paths depend on the operating system.
The Filebeat configuration is also responsible with stitching together
multiline events when needed.

Elasticsearch Ingest Node pipeline definition,
which is used to parse the log lines.

Fields definitions, which are used to configure Elasticsearch with the
correct types for each field. They also contain short descriptions for each
of the fields.

Sample Kibana dashboards, when available, that can be used to visualize the
log files.

Filebeat automatically adjusts these configurations based on your environment
and loads them to the respective Elastic stack components.